采用介质PBG盖板Fabry-Perot谐振器的宽频带高增益印刷天线  

Broadband and high-gain printed antennas constructed from Fabry-Perot cavity with dielectric PBG covers

作　　者：葛志晨[1] 章文勋[1] 刘震国[1] 顾莹莹[1] 

机构地区：[1]毫米波国家重点实验室东南大学,江苏南京210096

出　　处：《电波科学学报》2006年第5期647-651,共5页Chinese Journal of Radio Science

基　　金：江苏省自然科学基金项目(BK2003054)

摘　　要：研究了采用介质盖板组成的Fabry-Perot(F-P)谐振器结构的宽频带高增益平面印刷天线。比较了不同结构参数对天线性能的影响,并在此基础上通过引入二维光子带隙(PBG)结构,提出了两种既能提高增益、又能减小背向辐射的新型结构。通过软件仿真计算和实验,都验证了这两种结构的天线具有较好的实际应用性能。A broadband and high gain printed antenna constructed from Fabry-Perot cavity with dielectric covers is investigated. Based on a systematic comparison study for dependency of antenna performances on the structure parameters, it is found that both the directive gain and front to-back ratio can be enhanced by means of employing dielectric 2 D photonic bandgap （PBG） plates as covers. Two prototype models are designed, simulated, and tested, the results meet the expected performances for practical application.

关 键 词：Fabry-Perot谐振器 光子带隙(PBG)结构 宽频带天线 高增益天线 

分 类 号：TN820.12[电子电信—信息与通信工程]